Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing gases

摘要

Provided is a process for preparing an electrode comprising an iron active material. The process comprises first fabricating an electrode comprising an iron active material, and then treating the electrode with a gaseous oxidant to thereby create an oxidized surface. The resulting iron electrode is preconditioned prior to any charge-discharge cycle to have the assessable surface of the iron active material in the same oxidation state as in discharged iron negative electrodes active material.

主权项

1. A process for preparing an electrode comprising an iron active material, which comprises:
i) fabricating an electrode comprising an iron active material, and ii) treating the electrode with a gaseous oxidant to thereby create an oxidized surface prior to any charge-discharge cycle.